Grafting a citrus tree requires taking the branch from a healthy, grown citrus tree and attaching it to another citrus tree. The branches are combined, creating new shoots that allow different fruits to be grown from the same tree. The grafted tree will continue to grow the grafted material as if it were a part of its own body. Grafting is done for trees that do not naturally seed and produce more trees. Grafting also cuts down on the space required for growing multiple fruits.
Collect scion wood to attach to your other tree. Scion wood is a budding stem from a healthy, grown citrus tree. Choose scion wood that is 1/4 to 1/2 inch thick. Cut scion during the winter season. Store the scion wood in a refrigerator in damp paper towels to keep the wood fresh.
Graft your tree in the spring. Find a suitable area for the grafting. Choose branches that are 1/2 to 3/4 inch in diameter. Choose a place where the new bud will not be touched by southern or western sun to keep the bud from becoming burned in the sun.
Cut into the area where the graft will be placed, making a vertical 1 1/2-inch cut in length, with another line crossing it toward the bottom. The cut should look like an upside down T. Cut the bud at the bottom with a shallow diagonal cut.
Align the scion bud with the cut made in the tree nestling it in between the cut bark on the grafting tree. Attach the scion bud to the grafting area using grafting or electrical tape to attach the two areas. Attach it so that the tape is so tight it is about to tear. Remove the wrap after several week. If the graft "takes," the bud will become a new shoot.